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Cornerstone · Grades 3–5 Keystones #1 6 July 2025 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 6 July 2025 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 6⁄11 + 3⁄11

    Answer: 9⁄11
  2. 2. Algebra Two-step equations

    Solve: 4x - 8 = 44

    Answer: x = 13
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 3cm and 4cm

    Answer: 5cm
  4. 4. Ratio Sharing in a ratio

    Share 42 in the ratio 1:2

    Answer: 14 and 28
  5. 5. Statistics Mean

    Calculate the mean of: 10, 40, 34, 44, 37, 49, 44, 7

    Answer: 33.1

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